I am looking to send an email that has an HTML (for lack of a better word) embedded inside. So when a user opens their email they can click on graphics and such.

I know this is frowned upon in many web circuits, but it is something that my employer wants, so I must atleast try. Anyway, I have seen this done before ... infact I know X-Box newsletter does just this.

I have been able to get it to work for people on Windows using Outlook 2000, and for Mac users using web mail (hotmail, yahoo)

However, I have seen this working on .mac mail and was wondering if anyone knew a way to do this.